Heartbeat+Drbd+Mysql高可用（HA）集羣架構的部署
主機環境 redhat6.5 64位node
實驗環境 服務端1 ip 172.25.25.111 主機名：server1.example.com mysql
服務端2 ip172.25.25.112 主機名：server2.example.com算法
安裝包 heartbeat-3.0.4-2.el6.x86_64.rpm sql
heartbeat-devel-3.0.4-2.el6.x86_64.rpmshell
ldirectord-3.9.5-3.1.x86_64.rpmvim
heartbeat-libs-3.0.4-2.el6.x86_64.rpmapi
drbd-8.4.3.tar.gzbash
防火牆狀態：關閉 app
前面的博文中提過mysql的源碼安裝和drbd的內核模塊的添加，有些報錯的解決、安裝、測試這裏再也不重複，只是稍微提一下，感興趣的能夠看前面的博文。socket
1.安裝heartbeat、修改主配置文件及測試
1.安裝heartbeat、修改主配置文件（服務端1）
[root@server1 mnt]# ls #安裝包
heartbeat-3.0.4-2.el6.x86_64.rpm heartbeat-devel-3.0.4-2.el6.x86_64.rpm ldirectord-3.9.5-3.1.x86_64.rpm
heartbeat-libs-3.0.4-2.el6.x86_64.rpm
[root@server1 mnt]# yum install * -y #安裝/mnt全部
[root@server1 mnt]# cd /usr/share/doc/heartbeat-3.0.4/ #切換
[root@server1 heartbeat-3.0.4]# ls
apphbd.cf authkeys AUTHORS ChangeLog COPYING COPYING.LGPL ha.cf haresources README
[root@server1 heartbeat-3.0.4]# cp ha.cf haresources authkeys/etc/ha.d/ #拷貝主配置文件、資源配置文件、認證文件到指定目錄
[root@server1 heartbeat-3.0.4]# cd /etc/ha.d/
[root@server1 ha.d]# ls
authkeys ha.cf harc haresources rc.d README.config resource.d shellfuncs
[root@server1 ha.d]# vim ha.cf #進入主配置文件
34 logfacility local0
48 keepalive 2
56 deadtime 30
61 warntime 10
71 initdead 60
76 udpport 719 #udp協議端口號
91 bcast eth0
157 auto_failback on
#結點主機名，那個寫在前面那個就是主，另外一個就是備，以下：服務端1是主，服務端2是備
211 node server1.example.com
212 node server2.example.com
220 ping 172.25.25.250
253 respawn hacluster /usr/lib64/heartbeat/ipfail
259 apiauth ipfail gid=haclient uid=hacluster
[root@server1 ha.d]# vim haresources
150 server1.example.com IPaddr::172.25.25.100/24/eth0 httpd #主機名是主結點的主機名、添加虛擬ip、httpd服務
[root@server1 ha.d]# vim authkeys #進入認證文件
23 auth 1 #認證
24 1 crc #認證方式crc
root@server1 ha.d]# chmod 600 authkeys #修改認證文件的權限
[[root@server1 ha.d]# /etc/init.d/heartbeat start #開啓heartbeat
服務端2和服務端1的配置徹底相同，能夠在服務端2安裝好heartbeat的狀況下，將服務端1配置好的文件考過去，放在相同的目錄下，而後啓動服務端2的heartbeat服務，以下;
[root@server1 ha.d]# scp ha.cf haresources authkeys root@172.25.25.112:/etc/ha.d/ #拷貝
root@172.25.25.112's password:
[root@server2 ha.d]# /etc/init.d/heartbeat start #啓動（服務端2）
在測試以前，服務端1和服務端2要安裝httpd且有內容不一樣的測試頁。注意：不要手動啓動httpd，系統會自動啓動。
2.測試 172.25.25.100
[root@server1 ha.d]# /etc/init.d/httpd stop #將服務端1的httpd中止，測試
Stopping httpd: [ OK ]
[root@server1 ha.d]# /etc/init.d/httpd start #開啓httpd
Starting httpd: [ OK ]
2.編譯、安裝drbd內核模塊及測試
1.編譯、安裝drbd內核模塊
[root@server1 mnt]# ls
drbd-8.4.3.tar.gz
[root@server1 mnt]# tar zxf drbd-8.4.3.tar.gz #解壓
[root@server1 mnt]# ls
drbd-8.4.3 drbd-8.4.3.tar.gz
[root@server1 mnt]# cd drbd-8.4.3
[root@server1 drbd-8.4.3]# ./configure --enable-spec --with-km
[root@server1 drbd-8.4.3]# rpmbuild -bb drbd.spec
error: File /root/rpmbuild/SOURCES/drbd-8.4.3.tar.gz: No suchfile or directory
[root@server1 drbd-8.4.3]# cp /mnt/drbd-8.4.3.tar.gz/root/rpmbuild/SOURCES/
[root@server1 drbd-8.4.3]# rpmbuild -bb drbd.spec
[root@server1 drbd-8.4.3]# rpmbuild -bb drbd-km.spec
[root@server1 drbd-8.4.3]# cd /root/rpmbuild/RPMS/x86_64/ #切換目錄
[root@server1 x86_64]# ls #生成10個安裝包
drbd-8.4.3-2.el6.x86_64.rpm
drbd-bash-completion-8.4.3-2.el6.x86_64.rpm
drbd-debuginfo-8.4.3-2.el6.x86_64.rpm
drbd-heartbeat-8.4.3-2.el6.x86_64.rpm
drbd-km-2.6.32_431.el6.x86_64-8.4.3-2.el6.x86_64.rpm
drbd-km-debuginfo-8.4.3-2.el6.x86_64.rpm
drbd-pacemaker-8.4.3-2.el6.x86_64.rpm
drbd-udev-8.4.3-2.el6.x86_64.rpm
drbd-utils-8.4.3-2.el6.x86_64.rpm
drbd-xen-8.4.3-2.el6.x86_64.rpm
[root@server1 x86_64]# yum install * -y #安裝全部的包
[root@server1 x86_64]# scp * root@172.25.25.112:/mnt #將包傳給服務端2
[root@server2 mnt]# rpm -vih * #安裝
Preparing... ########################################### [100%]
1:drbd-utils ########################################### [ 10%]
2:drbd-bash-completion ########################################### [ 20%]
3:drbd-heartbeat ########################################### [ 30%]
4:drbd-pacemaker ########################################### [ 40%]
5:drbd-udev ########################################### [ 50%]
6:drbd-xen ########################################### [ 60%]
7:drbd ###########################################[ 70%]
8:drbd-km-2.6.32_431.el6.########################################### [80%]
9:drbd-km-debuginfo ########################################### [ 90%]
10:drbd-debuginfo ###########################################[100%]
在服務端1和服務端2虛擬機中各添加一塊虛擬磁盤或劃分一個新的分區，而後進行下面的步驟：
[root@server1 x86_64]# cd /etc/drbd.d/ #切換到drbd的主配置文件目錄
[root@server1 drbd.d]# vim dbdata.res #建立一個文件，後綴必須是.res
1 resource dbdata{
2 meta-disk internal;
3 device /dev/drbd1;
4 syncer {
5 verify-alg sha1; #設置主備機之間通訊使用的信息算法
6 }
#每一個主機的說明以"on"開頭,後面是主機名.在後面的{}中爲這個主機的配置
7 on server1.example.com{ #主機名
8 disk /dev/vdb; #磁盤名稱
9 address172.25.29.1:7789; #ip加端口，端口是指定的
10 }
11 onserver2.example.com{
12 disk /dev/vdb;
13 address172.25.29.2:7789;
14 }
15 }
[root@server1 drbd.d]# scp dbdata.resroot@172.25.29.2:/etc/drbd.d/
root@172.25.29.2's password:
#服務端1和服務端2同時初始化 ,同時開啓drbd
[root@server1 drbd.d]# drbdadm create-md dbdata #初始化
--== Thank you for participating in the globalusage survey ==--
The server's response is:
Writing meta data...
initializing activity log
NOT initializing bitmap
New drbd meta data block successfully created.
[root@server2 drbd.d]# drbdadm create-md dbdata
--== Thank you for participating in the globalusage survey ==--
The server's response is:
Writing meta data...
initializing activity log
NOT initializing bitmap
New drbd meta data block successfully created.
[root@server1 drbd.d]# /etc/init.d/drbd start #開啓drbd
[root@server2 drbd.d]# /etc/init.d/drbd start
[root@server1 drbd.d]# cat /proc/drbd #查看
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-08 15:10:25
1: cs:Connectedro:Secondary/Secondary ds:Inconsistent/Inconsistent C r-----
ns:0 nr:0 dw:0 dr:0al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:2097052
[root@server2 drbd.d]# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-08 15:10:25
1: cs:Connectedro:Secondary/Secondary ds:Inconsistent/Inconsistent C r-----
ns:0 nr:0 dw:0 dr:0al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:2097052
#從上面能夠看出兩個都是secondary
[root@server1 drbd.d]# drbdadm primary dbdata --force #強制使服務端1變成primary
[root@server1 drbd.d]# cat /proc/drbd #查看，服務端1和服務端2正在同步
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-08 15:10:25
1: cs:SyncSource ro:Primary/Secondaryds:UpToDate/Inconsistent C r-----
ns:496640 nr:0 dw:0dr:497304 al:0 bm:30 lo:0 pe:4 ua:0 ap:0 ep:1 wo:f oos:1604508
[===>................]sync'ed: 23.7% (1604508/2097052)K
finish: 0:00:16 speed:98,508 (98,508) K/sec
[root@server1 drbd.d]# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-08 15:10:25
1: cs:SyncSourcero:Primary/Secondary ds:UpToDate/Inconsistent C r---n-
ns:1566436 nr:0 dw:0dr:1569432 al:0 bm:94 lo:0 pe:16 ua:3 ap:0 ep:1 wo:f oos:546716
[=============>......]sync'ed: 74.1% (546716/2097052)K
finish: 0:00:08 speed:64,596 (64,596) K/sec
[root@server1 drbd.d]# cat /proc/drbd #同步完成，服務端1爲primary
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-08 15:10:25
1: cs:Connectedro:Primary/Secondary ds:UpToDate/UpToDate C r-----
ns:2097052 nr:0 dw:0dr:2097716 al:0 bm:128 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
[root@server2 drbd.d]# cat /proc/drbd
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-08 15:10:25
1: cs:Connectedro:Secondary/Primary ds:UpToDate/UpToDate C r-----
ns:0 nr:2097052dw:2097052 dr:0 al:0 bm:128 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
[root@server1 drbd.d]# mkfs.ext4 /dev/drbd1 #格式化
3.將drdb、mysql寫進heartbeat的文件裏且測試
1.將drdb、mysql寫進heartbeat的文件（服務端1）
[root@server1 ～]# yum install mysql-server -y #服務端1和服務端2都要安裝mysql，不要手動啓動
[root@server1 ~]# cat /proc/drbd #服務端1和服務端2要同爲secondary
version: 8.4.3 (api:1/proto:86-101)
GIT-hash: 89a294209144b68adb3ee85a73221f964d3ee515 build byroot@server1.example.com, 2016-10-02 15:19:31
1: cs:Connectedro:Secondary/Secondary ds:UpToDate/UpToDate C r-----
ns:171868 nr:0 dw:0dr:171868 al:0 bm:18 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f oos:0
[root@server1 ~]# cd /etc/ha.d/ #切換到heartbeat的配置文件路徑
[root@server1 ha.d]# vim haresources #進入
150 server1.example.com IPaddr::172.25.25.100/24/eth0drbddisk::dbdata Filesystem::/dev/drbd1::/var/lib/mysql::ext4 mysqld #將/dev/drbd1掛載到/var/lib/mysql目錄下，開啓mysql
[root@server1 ~]# /etc/init.d/heartbeat stop #中止heartbeat
Stopping High-Availability services: Done.
[root@server1 ~]# /etc/init.d/heartbeat status #查看狀態
heartbeat is stopped. No process
[root@server1 ~]# /etc/init.d/heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Done.
[root@server1 ~]# /etc/init.d/heartbeat start #開啓heartbeat
Starting High-Availability services: INFO: Resource is stopped
Done.
[root@server1 ha.d]# scp haresourcesroot@172.25.25.112:/etc/ha.d/
root@172.25.25.112's password:
服務端2
[root@server2 ha.d]# /etc/init.d/heartbeat stop
Stopping High-Availability services: Done.
[root@server2 ha.d]# /etc/init.d/heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Done.
2.測試
[root@server3 ~]# ping 172.25.25.100 #ping通了
64 bytes from 172.25.29.100: icmp_seq=1 ttl=64 time=0.485 ms
64 bytes from 172.25.29.100: icmp_seq=2 ttl=64 time=0.292 ms
64 bytes from 172.25.29.100: icmp_seq=3 ttl=64 time=0.289 ms
[root@server3 ~]# arp -an|grep 172.25.25.100 #查看ip
? (172.25.25.100) at 52:54:00:ec:8b:36 [ether] on eth0
[root@server1 ~]# ip addr show eth0 #和服務端1的同樣
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdiscpfifo_fast state UP qlen 1000
link/ether52:54:00:ec:8b:36 brd ff:ff:ff:ff:ff:ff
inet 172.25.25.111/24brd 172.25.25.255 scope global eth0
inet 172.25.25.100/24brd 172.25.25.255 scope global secondary eth0
inet6fe80::5054:ff:feec:8b36/64 scope link
valid_lft foreverpreferred_lft forever
[root@server1 ~]# df #磁盤也掛載上了
Filesystem 1K-blocks Used Available Use%Mounted on
/dev/mapper/VolGroup-lv_root 7853764 1290388 6164428 18% /
tmpfs 510200 0 510200 0% /dev/shm
/dev/vda1 495844 33467 436777 8% /boot
/dev/drbd1 4128284 95176 3823404 3% /var/lib/mysql
[root@server1 ~]# mysql #mysql也打開了
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
+--------------------+
3 rows in set (0.00 sec)
[root@server2 ha.d]# mysql
ERROR 2002 (HY000): Can't connect to local MySQL server throughsocket '/var/lib/mysql/mysql.sock' (2)
[root@server1 ~]# /etc/init.d/heartbeat stop #當服務端1的heartbeat中止以後
Stopping High-Availability services: Done.
[root@server1 ~]# mysql
ERROR 2002 (HY000): Can't connect to local MySQL server throughsocket '/var/lib/mysql/mysql.sock' (2)
[root@server3 ~]# arp -an|grep 172.25.25.100 #查看ip
? (172.25.25.100) at 52:54:00:85:1a:3b [ether] on eth0
[root@server2 ha.d]# ip addr show eth0 #服務端2在服務
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdiscpfifo_fast state UP qlen 1000
link/ether52:54:00:85:1a:3b brd ff:ff:ff:ff:ff:ff
inet 172.25.25.112/24brd 172.25.25.255 scope global eth0
inet6fe80::5054:ff:fe85:1a3b/64 scope link
valid_lft foreverpreferred_lft forever
[root@server2 ha.d]# df #掛載上了
Filesystem 1K-blocks Used Available Use%Mounted on
/dev/mapper/VolGroup-lv_root 7853764 1188980 6265836 16% /
tmpfs 510200 0 510200 0% /dev/shm
/dev/vda1 495844 33467 436777 8% /boot
/dev/drbd1 4128284 95176 3823404 3% /var/lib/mysql
[root@server1 ~]# /etc/init.d/heartbeat start #當服務端1的heartbeat啓動以後
Starting High-Availability services: INFO: Resource is stopped
Done.
[root@server3 ~]# arp -an|grep 172.25.25.100 #又回到了服務端1
? (172.25.25.100) at 52:54:00:ec:8b:36 [ether] on eth0
[root@server1 ~]# ip addr show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdiscpfifo_fast state UP qlen 1000
link/ether52:54:00:ec:8b:36 brd ff:ff:ff:ff:ff:ff
inet 172.25.25.111/24brd 172.25.25.255 scope global eth0
inet 172.25.25.100/24brd 172.25.25.255 scope global secondary eth0
inet6 fe80::5054:ff:feec:8b36/64scope link
valid_lft foreverpreferred_lft forever
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